Measure or rule.



0. POLAND.

MEASURE 0R RULE.

APPLICATION FILED $33126, 1908.

934,835, Patented Sept. 21, 1909.

CHRISTIAN POLAND, OF ERFURT, GERMANY.

MEASURE OR RULE.

Specification of Letters Patent.

Patented Sept. 21, 1909.

Application filed September 28, 1908. Serial No. 455,150.

To all whom it may concern:

Be it known that I, CHRISTIAN POLAND, factory manager, a subject of theKing of Bavaria, residing at Erfurt, Kingdom of Prussia, Germany, haveinvented certain new and useful Improvements in or Relating to Measuresor Rules, of which the following is a specification.

My invention relates to a jointed measure or rule which can be used as ameasuring tape, and the single members of which are made of band steel.

The novelty of this jointed rule consists in the single members beingconnected together by means of spring joints and provided withdivisions, printed or applied in any desired manner. The spring partsare provided by the single members, made of band steel, engaging witheach other, near their common joints, by means of stamped out slots andof stamped out and bent projections engaging with the same, so that theycan be held fast both in the open and in the closed or superposedpositions.

A construction of the new jointed rule is illustrated, by way ofexample, in the ac companying drawing in which Figure 1 is an elevation,Fig. 2 a vertical longitudinal section on the line A--B, and Fig. 3 avertical cross-section on line (1-D of Fig. 1.

Each of the members 1 is provided, near the joint 2, with a slot 3, anda stamped out bent projection 4. When the members 1 are in the openedout position, the projections 4: engage in the slots 3 and thus hold themembers firmly in the positions mentioned.

It will be seen from Fig. 3 that the proj ections 4 are laterallyrounded off at their edges, in order to bring about, on the opening andclosing of the jointed rule, a better disengagement and engagement ofthe projection at with the slots 3. The jointed rule thus constructed isprovided with divisions or scales printed or applied in any desiredmanner. Owing to the members of the jointed rule being connectedtogether by spring oints, it can be advantageously used as a measuringtape.

Instead of the upwardly bent stamped out projections, projections of anykind stamped out in the links 1 and engaging with the correspondingrecesses of the adjoining link could be employed.

What I claim is:

A folding measure comprising a plurality of sections pivotally connectednear their ends, the overlapping portions being provided near theirterminals with tongues integral therewith, formed of partially stampedout portions bent substantially at right angles and oppositely directedwith respect to each other, the bodies of the sections having eyestherein, said tongues engaging in said eyes to resiliently lock thesections when the measure is extended.

In testimony whereof I have hereunto set my hand in presence of twosubscribing witnesses.

CHRISTIAN POLAND.

Witnesses GUs'rAv LAAKE, J r., OSKAR HEIMANN.

